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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 4,122 - 4,129 (8page)
- DOI
- https://doi.org/10.1016/j.net.2021.06.026
이용수
초록· 키워드
오류제보하기
The counting efficiencies obtained using anthropomorphic physical phantoms are generally used inwhole-body counting measurements to determine the level of internal contamination in the body.
Geometrical discrepancies between phantoms and measured individuals affect the counting efficiency,and thus, considering individual physical characteristics is crucial to improve the accuracy of activityestimates. In the present study, the counting efficiencies of whole-body counting measurements werecalculated considering individual physical characteristics by employing Monte Carlo simulation forcalibration. The NaI(Tl)-based stand-up and HPGe-based bed type commercial whole-body counterswere used for calculating the counting efficiencies. The counting efficiencies were obtained from 19computational phantoms representing various shapes and sizes of the measured individuals. The discrepancies in the counting efficiencies obtained using the computational and physical phantoms rangefrom 2% to 33%, and the results indicate that the counting efficiency depends on the size of the measuredindividual. Taking into account the body size, the equations for estimating the counting efficiencies werederived from the relationship between the counting efficiencies and the body-build index of the subject.
These equations can aid in minimizing the size dependency of the counting efficiency and provide moreaccurate measurements of internal contamination in whole-body counting measurements
목차
등록된 정보가 없습니다.
참고문헌 (31)
참고문헌 신청
K. Tani / 2020 / Monte-Carlo simulations with mathematical phantoms to investigate the effectiveness of a whole-body counter for thyroid measurement / Radiat. Meas 135
O. Kurihara / 2018 / Experiences of population monitoring using whole-body counters in response to the Fukushima nuclear accident / Health Phys 115(2):259~274
E. Kim / 2016 / Early intake of radiocesium by residents living near the TEPCO Fukushima Dai-ichi nuclear power plant after the accident. Part 1 : internal doses based on whole-body measurements by NIRS / Health Phys 111(5):451~464
N. Matsuda / 2013 / Assessment of internal exposure doses in Fukushima by a whole body counter within one month after the nuclear power plant accident / Radiat. Res 179(6):663~668
Health Physics Society / 1999 / American National Standard: specifications for the bottle manikin absorption phantom, ANSI/HPS N13 :35
E. Kim / 2016 / Early intake of radiocesium by residents living near the TEPCO Fukushima Dai-ichi nuclear power plant after the accident. Part 1 : internal doses based on whole-body measurements by NIRS / Health Phys 111(5):451~464
N. Matsuda / 2013 / Assessment of internal exposure doses in Fukushima by a whole body counter within one month after the nuclear power plant accident / Radiat. Res 179(6):663~668
Health Physics Society / 1999 / American National Standard: specifications for the bottle manikin absorption phantom, ANSI/HPS N13 :35
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